Got this to add onto my auto tire inflator. Threaded right on and works as intended. The valve stem chuck is metal and looks like it should last a good long time. Wish I had known about these decades ago!Final assessment: much easier and quicker than using the threaded valve stem connectors that tire inflators come with. This is meant for small portable auto compressors and not heavy-duty industrial compressors.
Rating: [5 of 5 Stars!]